XPost: sci.electronics.basics   
   From: richg@example.net.invalid   
      
   Trevor wrote:   
   > "Don Pearce"  wrote in message   
   >>>> Echo is a single reflection of a sound - the kind you hear when you   
   >>>> shout "Hello" near a cliff.   
   >>>   
   >>>Multiple reflections are also common in such instances.   
   >>   
   >> No they are not. One cliff, one echo. No choice.   
   >   
   > In the real world cliffs are not usually one straight smooth edge of   
   > course.   
   >   
   That's why an echo is cool - they're relatively rare. :-)   
      
   Cheers!   
   Rich   
      
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